Benzyl 4-hydroxy-2-methoxy-6-methylbenzoate

From 2-methoxy-4-benzyloxy-6-n-pentylbenzoic acid and 2,4-dihydroxy-6-n-propylbenzoate with TFAA and subsequent debenzylation From 4-benzyloxy-2-hydroxy-3,6-dimethylbenzoic acid and benzyl 4-hydroxy-2-methoxy-6-methylbenzoate with TFAA and subsquent debenzylation From 2,4-dibenzyloxy-6-n-propylbenzoic acid and benzyl 2,3-dihydroxy-4-methoxy-6- -propylbenzoate with TFAA and subsequent debenzylation... 

As a typical example of tridepside synthesis, the preparation of 5-0-methylhiascic acid (227) is depicted in Scheme 35 122). Persulfate oxidation of ethyl 4-benzyloxy-2-hydroxy-6-methylbenzoate (273) in potassium hydroxide solution gave the corresponding 5-hydroxy derivative (274) from which 2,4-dibenzyloxy-5-methoxy-6-methylbenzoic acid (275) was prepared. Condensation of this acid with benzyl lecanorate (276) gave the... 

Hydroxy-4-0-methylgyrophoric acid 183 183-184 By condensation of 2,3-dibenzyloxy-4-methoxy-6-methylbenzoic acid and benzyl lecanorate with TFAA and subsequent debenzylation (223)... 

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See also in sourсe #XX -- [ ]

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